Indoor training bike



FIG. 1 is an upper right perspective view of my design;

FIG. 2 is an upper left perspective view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a front elevation view thereof; and,

FIG. 6 is a top plan thereof. 

The ornamental design for indoor training bike, as shown and described. 